9856116577 has 2 divisors, whose sum is σ = 9856116578. Its totient is φ = 9856116576.

The previous prime is 9856116547. The next prime is 9856116593. The reversal of 9856116577 is 7756116589.

It is a happy number.

9856116577 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5246249761 + 4609866816 = 72431^2 + 67896^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9856116577 is a prime.

It is not a weakly prime, because it can be changed into another prime (9856116527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4928058288 + 4928058289.

It is an arithmetic number, because the mean of its divisors is an integer number (4928058289).

Almost surely, 2^9856116577 is an apocalyptic number.

It is an amenable number.

9856116577 is a deficient number, since it is larger than the sum of its proper divisors (1).

9856116577 is an equidigital number, since it uses as much as digits as its factorization.

9856116577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 55.

The square root of 9856116577 is about 99277.9762938387. The cubic root of 9856116577 is about 2144.0518176179.

The spelling of 9856116577 in words is "nine billion, eight hundred fifty-six million, one hundred sixteen thousand, five hundred seventy-seven".